Collard, S. B. (2024). Birding for boomers: And everyone else brave enough to embrace the world's most rewarding and frustrating activity (First edition.). Mountaineers Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCollard, Sneed B. Birding for Boomers: And Everyone Else Brave Enough to Embrace the World's Most Rewarding and Frustrating Activity. First edition. Seattle, WA: Mountaineers Books, 2024.
एमएलए (8वां संस्करण) प्रशस्ति पत्रCollard, Sneed B. Birding for Boomers: And Everyone Else Brave Enough to Embrace the World's Most Rewarding and Frustrating Activity. First edition. Mountaineers Books, 2024.
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